GENUS 31. THISTLE FAMILY. 411 
7. Aster curvéscens Burgess. Dome-topped 
Aster. Fig. 4288. 
Vy 
PAS 
Ta 
fy) 
Aster curvescens Burgess; Britt. & Brown, Ill. Fl. 3: 
359. 1898. 
Dark green, chiefly glabrous; rootstocks often 10’ 
long; stem smooth, striate, delicate, 14°-34° high. 
Basal leaves tufted, conspicuous, these and the lowest 
stem leaves with a broad sinus tapering into a 
petiole 1-2 times as long as the blade, abruptly in- 
curved-acuminate; middle leaves ovate, short-peti- 
oled, rounded at the base, the upper lanceolate, slen- 
derly acuminate, often falcate; leaves firm, smooth- 
ish, the teeth broad, curved; inflorescence mostly 
convex, 3’-5’ broad, its short filiform naked branches 
widely ascending; heads 4-5” high; lower bracts 
short, obtuse, the others longer, nearly uniform, 
scarious, shining, linear, often acute, usually gla- 
brous; rays about 8, cream-white, about 5” long; 
disk becoming purple-brown; pappus early redden- 
ing; achenes slender, glabrous. 
In loose moist shaded soil, New England and New 
York to Virginia. Aug.—Sept. : 
8. Aster Schréberi Nees. Schreber’s Aster. 
Fig. 4289. 
Aster Schreberi Nees, Syn. Ast. 16. 1818. 
Stem stout, 2°-3° high, with long internodes. 
Basal leaves often in extensive colonies, thin, dull 
green, firm, rough above, with scattered slender ap- 
pressed bristles, pubescent beneath on the veins, 
reniform-cordate or cordate-triangular, often 7’ long 
by 5’ wide, the basal sinus when well developed 
rectangular, 2’ across and 1’ deep; upper leaves 
ovate-oblong to lanceolate, with a short broad basal 
‘wing, or sessile; petioles of the lower leaves long, 
conspicuously ciliate when young; inflorescence de- 
compound, flattish, or irregularly convex, 6’-12’ 
broad; heads abuut 5” high; bracts greenish, mostly 
obtuse, ribs and midrib dark green, ciliate; rays 
usually 10. 
In borders of woods, and along fence rows in partial 
shade, New York to Michigan and Virginia. July—Aug. 
g. Aster macrophyllus L. Large-leaved 
Aster. Fig. 4290. 
Aster macrophyllus L. Sp. Pl. Ed. 2, 1232. 1763. 
Rough; rootstocks long, thick; stem reddish, 
angular, 2°-3° high. Basal leaves forming large 
colonies, 3 or 4 to each stem, broad, cordate with 
a large irregular sinus, rough above, harsh, thick, 
the teeth broad, curved, pointed, the petioles long, 
narrow; upper stem leaves oblong with short 
broadly winged petioles, the uppermost sessile, 
acute; inflorescence strigose and glandular, broadly 
corymbose, irregular; heads 5”-6” high; peduncles 
rigid, thickish; rays about 16, 5’—7” long, chiefly 
lavender, sometimes violet, rarely pale; bracts con- 
spicuously green-tipped, the lower acute, the inner 
oblong, obtuse; disk turning reddish brown; florets 
short-lobed. 
In moderately dry soil, in shaded places, Canada to 
Minnesota and North Carolina. Here regarded as con- 
sisting of numerous slightly differing races, perhaps in- 
cluding the five following described as species. Aug. 
